After winning acclaim and awards for his YA novel Little Brother, Locus Award winner Doctorow (Down and Out in the Magic Kingdom) returns to adult sf. His latest involves a corporate executive who funds high-tech microprojects—they cost thousands of dollars instead of millions—a pair of inventors who can make anything out of anything, and a blogger who chronicles their careers. Doctorow isn’t Pollyannesque about the effects of rapid technological change: change of such scope and force is often devastating—boom followed by bust, then boom again, then bust. The ending of this well-written, well-conceived novel is bittersweet. VERDICT In speculative fiction, too often the ideas outrun the writing, but not here. Doctorow’s novel features a good, modest story, appealing characters, and extremely interesting ideas that will appeal to his fans and sf aficionados as well as readers interested in cogitating on the social consequences of cybertechnology’s near-exponential growth. Enthusiastically recommended.